Example usage for java.net InetAddress getAllByName

Introduction

In this page you can find the example usage for java.net InetAddress getAllByName.

Prototype

public static InetAddress[] getAllByName(String host) throws UnknownHostException 

Source Link

Document

Given the name of a host, returns an array of its IP addresses, based on the configured name service on the system.

Usage

From source file:net.sf.jasperreports.phantomjs.InetUtil.java

public static Inet4Address getIPv4Loopback() {
    InetAddress loopbackAddress = InetAddress.getLoopbackAddress();
    //the phantomjs web server module only works with IPv4
    if (loopbackAddress instanceof Inet4Address) {
        return (Inet4Address) loopbackAddress;
    }//from w ww .  ja  va  2  s.c  o m

    try {
        InetAddress[] addresses = InetAddress.getAllByName(loopbackAddress.getHostName());
        for (InetAddress inetAddress : addresses) {
            if (inetAddress instanceof Inet4Address) {
                return (Inet4Address) inetAddress;
            }
        }
    } catch (UnknownHostException e) {
        log.warn("Error while determining loopback addresses for " + loopbackAddress.getHostName(), e);
    }

    try {
        //keep looking for a IPv4 loopback address
        for (Enumeration<NetworkInterface> itfs = NetworkInterface.getNetworkInterfaces(); itfs
                .hasMoreElements();) {
            NetworkInterface itf = itfs.nextElement();
            if (itf.isLoopback()) {
                for (Enumeration<InetAddress> addresses = itf.getInetAddresses(); addresses
                        .hasMoreElements();) {
                    InetAddress address = addresses.nextElement();
                    if (address instanceof Inet4Address) {
                        return (Inet4Address) address;
                    }
                }
            }
        }
    } catch (SocketException e) {
        log.warn("Error while listing network interfaces", e);
    }

    return null;
}

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From source file:com.bitsofproof.supernode.core.DNSDiscovery.java

@Override
public List<InetSocketAddress> discover() {
    log.trace("Discovering network using DNS seed");
    int n = 0;//from   ww  w.j a  v a  2  s. co m
    List<InetSocketAddress> al = new ArrayList<InetSocketAddress>();
    for (String hostName : seedHosts) {
        log.trace("Obtain addresses from " + hostName);
        InetAddress[] hostAddresses;
        try {
            hostAddresses = InetAddress.getAllByName(hostName);
            for (InetAddress inetAddress : hostAddresses) {
                al.add(new InetSocketAddress(inetAddress, chain.getPort()));
                ++n;
            }
        } catch (UnknownHostException e) {
        }
    }
    Collections.shuffle(al);
    log.trace("Found " + n + " addresses of seed hosts");
    return al;
}

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From source file:org.ots.dns.LocalManagedDns.java

@Override
public InetAddress[] lookupAllHostAddr(String s) throws UnknownHostException {
    if (ipPattern.matcher(s).matches()) {
        String ip = s.substring(3).replace('-', '.');
        return InetAddress.getAllByName(ip);
    }/*w ww  .  j a v a 2  s . com*/
    String ipAddress = NameStore.getInstance().get(s);
    if (!StringUtils.isEmpty(ipAddress)) {
        log.debug("\tmatch");
        return InetAddress.getAllByName(ipAddress);
    } else {
        log.debug("\tmiss");
        return defaultDnsImpl.lookupAllHostAddr(s);
    }
}

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From source file:com.doculibre.constellio.filters.LocalRequestFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    Set<String> acceptedAndDynamicHosts = new HashSet<String>();
    acceptedAndDynamicHosts.addAll(Arrays.asList(ACCEPTED_HOSTS));

    // Solution adapted from http://www.exampledepot.com/egs/java.net/Local.html
    String hostName = InetAddress.getLocalHost().getHostName();
    InetAddress addrs[] = InetAddress.getAllByName(hostName);
    for (InetAddress addr : addrs) {
        String hostAddress = addr.getHostAddress();
        acceptedAndDynamicHosts.add(hostAddress);
    }/*from   w  ww .  j  a v  a 2 s . c  o m*/

    boolean valid;
    if (isIgnoredRequest(request) || isFileRequest(request)) {
        valid = true;
    } else {
        valid = false;
        String remoteHost = request.getRemoteHost();
        for (String acceptedHost : acceptedAndDynamicHosts) {
            if (remoteHost.equals(acceptedHost)) {
                valid = true;
            }
        }
    }

    if (valid) {
        // Pass control on to the next filter
        chain.doFilter(request, response);
    } else {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        throw new ServletException("Cannot send request to a servlet from outside the Web application : "
                + httpRequest.getRequestURL());
    }
}

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From source file:com.edmunds.etm.management.util.DnsUtils.java

/**
 * Returns an array of all IP addresses for the given host name.
 * <p/>//from w  w  w .  j  av a 2  s  .  com
 * The host name can either be a machine name or a textual representation of an IP address. If a literal IP address
 * is supplied, only the validity of the address format is checked.
 *
 * @param host       host name or IP address
 * @param retryCount maximum number of times to retry DNS lookups
 * @return array of IP addresses, or {@code null} if no addresses were found
 */
public static InetAddress[] getAddressesByHost(String host, int retryCount) {

    if (StringUtils.isBlank(host)) {
        throw new IllegalArgumentException("Host name is blank");
    }

    InetAddress[] addresses = null;
    for (int i = 0; i < retryCount; i++) {

        try {
            addresses = InetAddress.getAllByName(host.trim());
        } catch (UnknownHostException e) {
            try {
                Thread.sleep(CONNECT_RETRY_WAIT_MILLIS);
            } catch (InterruptedException e1) {
                Thread.currentThread().interrupt();
            }
        }
    }

    return addresses;
}

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From source file:net.sqs2.omr.session.service.AbstractRemoteExecutorManager.java

public synchronized void connect(String uri, long key, long sessionID) {

    try {//from   w  w  w  .  j a  va2s  .c om
        if (NetworkUtil.isMyAddress(InetAddress.getAllByName(new URI(uri).getHost()))) {
            if (!AbstractTaskTracker.DEBUG_CLUSTER_MODE) {
                return;
            }
        }

        if (this.maximumNumberOfConnections <= this.remoteTaskTrackerMap.size()) {
            Logger.getLogger("executor")
                    .info("num remoteTaskBroders exceeded:" + this.remoteTaskTrackerMap.size());
            return;
        }

        AbstractTaskTracker<T, D> remoteTaskTracker = this.remoteTaskTrackerMap.get(uri);

        if (remoteTaskTracker != null
                && (remoteTaskTracker.isConnected() == false || remoteTaskTracker.getKey() != key)) {
            this.remoteTaskTrackerMap.remove(uri);
            Logger.getLogger("executor").info("Remove old taskTracker=" + uri);
            remoteTaskTracker = null;
        }

        if (remoteTaskTracker == null) {
            Logger.getLogger("executor").info("Create new taskTracker=" + uri);
            remoteTaskTracker = createRemoteTaskTracker(uri, key, sessionID);
        } else {
            //Logger.getLogger("executor").info("Reuse connected taskTracker=" + uri);
        }
    } catch (SocketException ex) {
        Logger.getLogger("executor").severe("SocketException:" + uri);
    } catch (UnknownHostException ex) {
        Logger.getLogger("executor").severe("URISyntaxException:" + uri);
    } catch (URISyntaxException ex) {
        Logger.getLogger("executor").severe("UnknownHostException:" + uri);
    }
}

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From source file:com.orange.cloud.servicebroker.filter.securitygroups.domain.Destination.java

public Stream<String> getIPs() {
    try {//  w  w  w  .ja  v a2  s .c o  m
        return Stream.of(InetAddress.getAllByName(host)).map(InetAddress::getHostAddress);
    } catch (UnknownHostException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.glite.authz.common.http.JettyAdminServiceCLI.java

/**
 * Parses the hostname command line argument. Checks that the argument is a valid hostname.
 * /*from  w  w  w. ja va2s .  c o  m*/
 * @param hostArgument the command line hostname argument
 * 
 * @return the hostname
 */
private static String parseHost(String hostArgument) {
    try {
        InetAddress[] addresses = InetAddress.getAllByName(hostArgument);
        return addresses[0].getHostName();
    } catch (UnknownHostException e) {
        exit("The host argument is not a valid hostname or IP address", RC_BAD_ARGUMENTS);
    }

    return null;
}

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From source file:com.mgmtp.perfload.perfmon.util.PerfMonUtils.java

/**
 * Gets all IP addresses of the localhost.
 * /*ww w  . j a  v  a2s  . co m*/
 * @return an array of {@link InetAddress} objects
 */
public static InetAddress[] getNetworkIPAddresses() throws UnknownHostException {
    InetAddress localhost = InetAddress.getLocalHost();
    return InetAddress.getAllByName(localhost.getCanonicalHostName());
}

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From source file:net.sqs2.omr.task.broker.RemoteTaskExecutorManager.java

private TaskBroker createRemoteTaskBroker(String uriString, long remoteKey, long sessionID) {
    try {/*from  w ww  .  j  a v a2 s . c o m*/
        URI uri = new URI(uriString);

        if (NetworkUtil.isMyAddress(InetAddress.getAllByName(uri.getHost()))) {
            return null;
        }

        RemoteSessionService sessionService = (RemoteSessionService) Naming.lookup(uri.toString()); // connect to remote SessionService
        long result = sessionService.ping(remoteKey); // authentication
        if (DEBUG) {
            Logger.getLogger("executor").info("RemoteSessionService.URI=" + uri);
            Logger.getLogger("executor").info("Hello=" + result);
        }
        TaskBroker remoteTaskBroker = new TaskBroker("Remote", this.manager,
                new TaskExecutorEnv(null, sessionService, remoteKey, sessionID));
        return remoteTaskBroker;
    } catch (UnknownHostException ex) {
        Logger.getLogger("executor").severe("UnknownHostException:" + ex.getMessage());
    } catch (SocketException ex) {
        Logger.getLogger("executor").severe("SocketException:" + ex.getMessage());
    } catch (URISyntaxException ex) {
        Logger.getLogger("executor").severe("URISyntaxException:" + ex.getMessage());
    } catch (ConnectException ex) {
        Logger.getLogger("executor").severe("ConnectException:" + ex.getMessage());
    } catch (RemoteException ex) {
        Logger.getLogger("executor").severe("RemoteException:" + ex.getMessage());
    } catch (MalformedURLException ex) {
        Logger.getLogger("executor").severe("MalformedURLException:" + ex.getMessage());
    } catch (NotBoundException ex) {
        Logger.getLogger("executor").severe("NotBoundException:" + ex.getMessage());
    }
    return null;
}

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